ATMEGA48PB-AU

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ATMEGA48PB-AU

+BOM

IC MCU 8BIT 4KB FLASH 32TQFP

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Specifications

Attribute Value
Package Tray
Series AVR® ATmega, Functional Safety (FuSa)
ProductStatus Active
CoreProcessor AVR
CoreSize 8-Bit
Speed 20MHz
Connectivity I²C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O 27
ProgramMemorySize 4KB (2K x 16)
ProgramMemoryType FLASH
EEPROMSize 256 x 8
RAMSize 512 x 8
Voltage-Supply(Vcc/Vdd) 1.8V ~ 5.5V
DataConverters A/D 8x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 32-TQFP

Overview

Description

The ATmega48PB-AU is an 8-bit AVR microcontroller from Microchip, based on the AVR RISC architecture. It features 4KB Flash, 512B SRAM, and 256B EEPROM, with a max clock speed of 20MHz.
Key peripherals include:
- 12-channel 10-bit ADC
- Three 8-bit and one 16-bit PWM timers
- USART, SPI, and I²C interfaces
- Programmable watchdog timer & brown-out detector
The -AU suffix denotes a TQFP-32 package, making it suitable for compact designs. It operates at 1.8V–5.5V, supporting low-power modes for energy-efficient applications.
Ideal for embedded systems, IoT, and industrial control, it offers a cost-effective, versatile solution with robust performance.

Equivalent

Equivalent products to the ATMEGA48PB-AU include:
- ATMEGA48PA-AU (earlier version, fewer features).
- ATMEGA88PB-AU (16KB flash, more memory).
- ATMEGA168PB-AU (16KB flash, 1KB RAM).
- ATMEGA328PB-AU (32KB flash, popular in Arduino).
- ATTINY48-AU (smaller, 4KB flash).
All are 8-bit AVR microcontrollers with similar pinouts and peripherals, varying in memory and features. Check datasheets for exact compatibility.

Features

The ATmega48PB-AU is an 8-bit AVR microcontroller with key features:
- Core: 8-bit AVR, up to 20 MHz clock speed.
- Memory: 4 KB Flash, 512 B SRAM, 256 B EEPROM.
- I/O: 23 programmable pins, including 6 PWM channels.
- Timers: Three 8-bit timers and one 16-bit timer.
- ADC: 10-bit, 8-channel ADC.
- Communication: USART, SPI, I²C (TWI).
- Special Features: Power-on reset, watchdog timer, internal oscillator (8 MHz).
- Packaging: 32-pin TQFP (AU).
- Voltage: 1.8V–5.5V operation.
- Low Power: Multiple sleep modes for energy efficiency.
Ideal for embedded control, IoT, and low-power applications.

Pinout

The ATMEGA48PB-AU is a 32-pin microcontroller in a TQFP package. Key features include:
- 32 pins (28 usable I/O pins)
- 8-bit AVR architecture with 4KB Flash, 512B SRAM, 256B EEPROM
- Peripherals:
- 6-channel 10-bit ADC
- 3 timers (two 8-bit, one 16-bit)
- USART, SPI, I²C (TWI)
- PWM outputs
- Analog comparator
- Operating voltage: 1.8V–5.5V
- Clock speed: Up to 20MHz
Pins support digital I/O, analog input, and communication interfaces. Suitable for embedded control applications.

Application

The ATmega48PB-AU is a versatile 8-bit microcontroller used in various applications, including:
- Embedded Systems: Home automation, IoT devices, and sensor nodes.
- Consumer Electronics: Remote controls, toys, and small appliances.
- Industrial Control: Motor control, automation, and monitoring systems.
- Automotive: Basic control modules and dashboard systems.
- Hobbyist Projects: Arduino-compatible DIY projects and prototyping.
Its features (low power, 8KB Flash, 512B EEPROM, and multiple I/Os) make it ideal for cost-sensitive, compact designs.

Package

The ATMEGA48PB-AU comes in a TQFP-32 package. This is a 32-pin Thin Quad Flat Package with a body size of 7x7mm and a 0.8mm pin pitch. It is surface-mountable, suitable for compact PCB designs, and offers good thermal and electrical performance for embedded applications. The "-AU" suffix indicates the industrial temperature range (-40°C to +85°C).

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